Adaptive Inverse Dynamics Control for Vibration Suppression of Flexible Panel with Piezoelectric Layers

In this paper an adaptive inverse dynamics control is applied to control and suppress the micro- vibrations of a flexible panel. The piezoelectric layers are used as sensors and actuators. Micro-vibrations, generally defined as low amplitude vibrations at frequencies up to 1 kHz, are now of critical importance in a number of areas. One such area is onboard spacecraft carrying sensitive payloads where the micro- vibrations are caused by the operation of other equipment. A rectangular simply supported flexible panel is considered and the equipments are located on it as lumped masses and concentrated forces. The concentrated loads induce micro-vibrations in the flexible panel. The governing equations of motion are derived based on Lagrange -Rayleigh-Ritz method. Finally the controller is applied and the system is simulated. Simulation results show the advantages of the adaptive inverse dynamics control algorithm.

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